If you want to make a hat, one of the most important tools is the right hat pattern. We sell patterns in the various sizes and shapes needed for various hat styles. These hat patterns were designed to be used in the felting of an alpaca hat, but can be used to felt with any natural fiber. The hat pattern material is waterproof and durable. It is also approximately 1/8″ thick, so it is easy to feel the hat pattern during the felting process. These hat patterns are also sold in a kit with all of the materials you need to felt an alpaca hat. Patterns come in 3 sizes (S, M, L) and 3 different shapes. The size you choose is most likely determined by the brim size you desire in the finished alpaca hat. If your desired felted hat is a cowboy hat with a large brim, you would want a larger size hat pattern than if your desired hat is a fedora hat with a small brim.